CN100459916C

CN100459916C - Automatic frying apparatus without oil smoke

Info

Publication number: CN100459916C
Application number: CNB200710004545XA
Authority: CN
Inventors: 许朝霞; 彭正
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-17
Filing date: 2004-01-12
Publication date: 2009-02-11
Anticipated expiration: 2024-01-12
Also published as: CN101044958A; US20050011370A1; CA2449600C; CN101053492A; CN1575710A; US6845707B1; CN1319484C; CN100536735C; CA2449600A1; BRPI0404974A

Abstract

An automatic frying apparatus (100) for both deep and shallow frying. Frying apparatus (100) comprises a container (102) having an inner cylindrical wall (102b) installed on the central bottom thereof, a lid (104) covering on top of container (102), a plurality of stirring blades (108) rotatably and removably installed inside container (102) for stirring foods, a power-drive assembly (110) operationally coupled with blades (108) for driving blades (108) through repeating stirring cycles, a coupling device (106) for coupling in between assembly (110) and blades (108), a venting device (200) for filtering and deodorizing cooking fumes, and a blowing device (202) for forcing fresh air into the container (102) to remove steam generated during cooking, a controlling device for automatically cutting off power of the power-drive assembly (110) at the end of each stirring cycle to stop the blades for an certain interval. Food pieces are partially immersed in the boiling oil, and therefore, less oil is required for frying foods, thereby, causing less energy consumption, less fat absorption by the food, less time for cooking, and less used oil for disposal.

Description

Automatic frying apparatus without oil smoke

Technical field

The present invention relates to electrical equipment for use in kitchen or food processing equipment, especially relate to and a kind ofly can be used for dark fried and fry in shallow oil multi-purpose automatic frying apparatus without oil smoke such as stir-fry.

Background technology

Deep fried foodstuff is attractive in appearance, good to eat, shows unique characteristics, such as, fried shrimp, chicken nugget, or the like.The key character of deep fried foodstuff is: tender with a crispy crust.But, fried and exist some to be starved of the problem of solution when frying in shallow oil cooked food with conventional method and equipment.

The first, the moisture content in the food material produces when contacting with deep fat and splashes.Liquid that splashes and the food fragment distance quite far away that can fly out.These splashes not only pollute cooking stove, and the personnel that also may cause burn.

The second, the oil smoke that edible oil when heating produces is harmful, often sucks this oil smoke and can cause long-term harm to healthy.

The 3rd, the oil smoke that produces during the edible oil heating can be deposited on the surfaces such as furniture, drawing, electrical equipment, and home environment is caused harmful effect.

The 4th, contain more edible oil with the fried food of conventional method and equipment making than other food, and the higher food of a large amount of edible oil and fat content is unfavorable to health.

The 5th, fried the edible oil of food, if mishandling, can pollute environment.

The 6th, in the frying process, for realizing the even heating of food, food need ceaselessly stir and overturn.Use present process equipment, this process all realizes by artificial, causes the manpower waste.

At present, existing many electric equipment products that are specifically designed to fry on the market.These products have a gabion that can vertically move usually.During use, food is placed in the basket, be immersed in together in the boiling hot oil then.Processed food needs a large amount of edible oils in this way.And many more with oil, energy consumption is big more, and required time of fried system food is also just long more, and the amount of the edible oil that food absorbed is also just many more simultaneously.

Some patented technologies about the frying course automation are also arranged, lay particular emphasis on the edible oil content that reduces fried system food.

U.S. Patent No. 5,027,697, patent applicant De Longhi, July 2 1991 date of application, announcement be a kind of deep-frying device that a rotating tilting gabion is arranged.When gabion rotated, food periodically was immersed in the deep fat, thereby helped discharge and even, the Fast Heating of steam.

U.S. Patent No. 5,543,166, patent applicant Masel, etc., August 6 1996 date of application, description be a kind of deep-frying device, comprise a rotary drum of containing food, it is characterized in that: the food that exploded is removed unnecessary edible oil with centrifugal mode.

U.S. Patent No. 5,611,265, patent applicant Ronci, etc., March 18 1997 date of application, description be a kind of fried, roasting dual-purpose apparatus.The food that exploded is removed unnecessary edible oil with centrifugal mode.

U.S. Patent No. 6,453,801, patent applicant Masel, etc., September 24 2002 date of application, announcement be a kind of deep-frying device, comprise a rotary drum of containing food.It is characterized in that: a container of containing oil moving up and down is arranged, be used to regulate the height of pasta with respect to the fried food of quilt.

Above-mentioned patented technology concentrates on the automatic deep-frying device technology of developing.Wherein some reduce the edible oil content of fry by the way of machinery, as centrifugation de-oiling etc.The major defect of these products is that volume is big, cost is high, structure is too complicated, and, use the back to clean comparatively difficulty.

Fume pollution problem during all unresolved cooking food of above-mentioned patented technology.

Above-mentioned all known technologies all only can be used for fried deeply food.And fry in shallow oil stir-fry is a kind of more widely used food-processing method, especially Chinese meal culinary art.

Fry in shallow oil and fry to require constantly to stir food, so, splashing of being produced in the stir-fry process fried in shallow oil and oil smoke is the major issue that will solve.On the other hand, fry in shallow oil and fry a large amount of hand labor of process need, therefore, realize that its automation will reduce the amount of labour of people in cooking process greatly.

And the edible oil content that reduces fry can be realized by improving processing method and equipment, and key is, the moisture in steam, especially the food outer surface that manage to remove in the cooking process and produced.The moisture of removing foodstuff surface as soon as possible helps reducing the absorption of food for edible oil, shorten the fried system time, and the food of made will highlight more and tender with a crispy crust, good to eat characteristics attractive in appearance.

So, being necessary to provide a kind of device for cooking, this device for cooking (1) can be used in dark fried and fries in shallow oil multiple use such as stir-fry; (2) have automation function, thereby reduce the amount of labour of people in cooking process; (3) have the function of handling oil smoke, health and home environment are worked the mischief to avoid oil smoke; (4) heat food more equably; The minimum edible oil of needs when (5) being used for fry; (6) can remove the moisture of foodstuff surface effectively, to reduce the edible oil content of fry; (7) low cost of manufacture; (8) easy to use.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can be used in dark fried and fry in shallow oil multi-purpose automatic frying apparatus without oil smoke such as stir-fry, described automatic cooker comprises:

A container has a top opening, is used to contain food;

A container cover covers the top of described container, is used to close the top opening of described container;

A heater is used to heat the food in the described container;

An agitating device is installed in the described container, is used to stir the food in the described container;

A drive unit is coupled with described agitating device, is used to drive described agitating device and periodically stirs the interior food of described container;

A coupling device, described agitating device and described drive unit are used to be coupled; With

An air-blowing device is used to force fresh air to enter in the described container, so that remove the steam that is produced when cooking.

Another object of the present invention is to provide a kind of automatic cooker that can stir food automatically, to save manpower.

A further object of the present invention is, a kind of oil smoke that is produced can remove the cooking time and the no oil smoke device for cooking of peculiar smell are provided, thus the long-term hazards of avoiding oil smoke and peculiar smell that home environment and health are brought.

A further object of the present invention is, a kind of device for cooking is provided, and when this device for cooking is used for fried deeply food, require minimum edible oil, thereby conservation reduces energy resource consumption, shortens the used time of culinary art.

A feature of the present invention is, the device for cooking that is provided comprises an agitating device, and this agitating device periodically stirs food, when each stirs end cycle, automatically cut off the power supply of drive unit, force agitating device to stagnate one period predetermined time interval.The advantage of this service intermittent mode is, can realize stirring effect preferably, and can prolong the service life of parts, saves the energy.On the other hand, this step working method helps fry to form crisp superficial layer, thereby makes the food of producing more attractive in appearance, good to eat.

Another feature of the present invention is, the device for cooking that is provided comprises a forced exhaust system, oil smoke and peculiar smell that this system is produced in the time of can removing the cooking effectively, thereby the long-term hazards of avoiding oil smoke that home environment and health are brought; This system can also remove the steam that the cooking time is produced effectively, thereby helps reducing the absorption of food for edible oil, shortens the fried system time, and the food of made tenders with a crispy crust, attractive in appearance, good to eat.

An advantage of the invention is that the device for cooking that is provided is applicable to dark fried and fry in shallow oil multiple use such as stir-fry.

Another advantage of the present invention is, the device for cooking that is provided does not have fume pollution, the harm that can avoid oil smoke that home environment and health are brought effectively.

Another advantage of the present invention is that the operating process full automation of the device for cooking that is provided is greatly saved manpower.

Another advantage of the present invention is when the device for cooking that is provided is used for exploding food deeply, require minimum edible oil, thereby conservation reduces energy resource consumption, and the used time to be cooked in shortening.

The present invention above-mentioned and other purpose, feature and advantage, according to following explanation, and with reference to accompanying drawing, will be more apparent.

Description of drawings

Fig. 1 describes a case study on implementation of the present invention, a cross section of automatic cooker 100.

Fig. 2 describes a cross section of coupling device 106.

Fig. 3 describes a cross section of agitating device 108.

Fig. 4 describes a cross section of exhaust apparatus 200.

Fig. 5 describes a cross section of air-blowing device 202.

Fig. 6 describes a cross section of one-way cock 218 among Fig. 5.

Fig. 7 describes a control circuit 152 that is used to control automatic cooker 100.

Fig. 8 describes a control circuit 50 that is used to realize agitating device 108 service intermittent modes.

Fig. 9 describes a control circuit 70 that is used to realize air-blowing device 202 service intermittent modes.

Figure 10 describes a perspective view of gabion 168 used when being used for exploding food deeply.

Figure 11 describes the cross section of gabion 168 in the operating position.

Figure 12 describes the another kind design of automatic cooker 100 among Fig. 1, automatic cooker 100a.

Figure 13 describes another case study on implementation of the present invention, a cross section of automatic cooker 300.

Figure 14 describes a cross section of sealing device 308 among Figure 13.

Figure 15 describes a cross section of the another kind design of sealing device 308 among Figure 13.

Figure 16 describes another case study on implementation of the present invention, a cross section of automatic cooker 400.

The specific embodiment

Fig. 1 describes a case study on implementation of the present invention, a cross section of automatic cooker 100.Automatic cooker 100 comprises 110, one exhaust apparatus 200 of 108, one drive units of 106, one agitating devices of 104, one coupling devices of 102, one container cover of a container and an air-blowing device 202.

Container 102 has a top opening, an outer wall 102a and a tubular inner wall 102b who stands on container 102 bottom center.Inwall 102b is installed in container 102 bottom center, and extends upward thus, forms a central opening.Container 102 inner surfaces can be coated with is not stained with material.

An anti-corotation device 112 is installed in container 102 the insides, on the outer wall 102a, is used to prevent rotate together when food from working as agitating device 108 rotations thereupon.As shown in Figure 1, anti-corotation device 112 is presented as one or more metal blades that radially extend, and its installation site is higher than agitating device 108 a little, and extends upward.The size and the shape of anti-corotation device 112 can be decided according to the specific design of container 102.Anti-corotation device 112 also can be an inner surface projection of making the suitable size of one with container 102.

A heater 114 is installed on the outer surface of container 102 bottoms, is used for the food in the heating container 102.Heater 114 is in contact condition with container 102 bottoms, and when beginning to heat when heater 114 connection power supplys, the foods in the container 102 and then are heated together.Heater 114 can be the perhaps heater of many other types of resistance class heater, such as, high-intensity red external radiation class heater etc.Heater 114 also can be installed in container 112 the insides, is installed on the container cover 104, or a cooking stove.

A container base 116 is installed in the bottom and the neighboring of container 102, is used to container 102 to provide the bottom to support, makes automatic cooker 100 can stand in one plane, as kitchen countertop etc.Another effect of base 116 is to provide adiabatic for container 102 bottoms.The sidewall of bearing 116 can extend upward, and the some of the outer wall 102a of covering container 102 is to reduce thermal loss.In this case, base 116 plays an external shell.

A temperature sensor 118 is used for the temperature in the measuring vessel 102.Measured temperature can be used as an input variable of control system.Sensor 118 is installed in a suitable position of container 102 bottoms.When the temperature in the container 102 surpasses the value that the user sets, the power supply that leads to heater 114 will be cut off, so that satisfy user's requirement and save the energy.

Container cover 104 covers the top of container 102, is used for the top opening of closing containers 102.Container cover 104 can be made with transparent material, or metal material, but leaves the watch window (not shown).Watch window is made with transparent material, so that the user observes the process of food thus.

There is an opening 104a suitable position on the container cover 104, is used for adding seasoning matter etc. at cooking process in container 102.A small container lid 104b is used to close opening 104a.

Fig. 2 describes a cross section of coupling device 106.Coupling device 106 has an outer tubular wall 106a and a tubular inner wall 106b, and a main shaft 120 and an agitating device 108 that is extended out by drive unit 110 is used to be coupled.Outer wall 106a is coaxial with inwall 106b, and the two is coaxial with the tubular inner wall 102b of container 102 again.Outer wall 106a and inwall 106b are fixed together on top.The bottom of outer wall 106b is connected with agitating device 108.A flute profile coupling element 106c is arranged at the bottom of inwall 106b, or the coupling element of other type, is coupled by a coupling element 122 with main shaft 120.

When in running order, outer wall 106a is enclosed within on the container inner wall 102b, and inwall 106b is by in the top central opening that penetrates container inner wall 102b.The top of main shaft 120 is by in the following central opening that penetrates inwall 106b.Gap between each wall is as far as possible little, to guarantee desirable duty.

Agitating device 108 is removably mounted on the inside of container 102, and bottom center can be rotated around central shaft.Agitating device 108 has a central opening, is enclosed within on the container inner wall 102b.As shown in Figure 2, agitating device 108 is presented as one or more metal blades, is used to scoop up and stir food.

A support member 124 is fixed on container 102 bottom center, and the lower end of container inner wall 102b is used to support agitating device 108.

A cross section when Fig. 3 describes agitating device 108 and is installed on container 102 bottoms, this cross section is the plough shape generally, agitating device 108 between its layered front portion 108a and container 102 bottoms a predetermined very little gap arranged, so that can scoop up food well; Its rear face part 108b makes progress gradually, extends back, and is used to dig food.

When the gap of agitating device 108 and container 102 bottoms hour, agitating device 108 will directly be scraped on the bottom of container 102 inevitably, thereby causes the wearing and tearing and the energy loss of the agitating device 108 that brings owing to rubbing.In order to solve this difficult problem, increase one or more annular microspike 102c in container 102 bottoms, its structure can see figures.1.and.2.Circular protrusion 102c provides further support to agitating device 108.The width of circular protrusion 102c is predetermined, and its size will guarantee to provide sufficient support to agitating device 108, and it is excessive that frictional force is unlikely to again.When container 102 inner surfaces scribble when not being stained with material, the upper surface of circular protrusion 102c preferably is not coated with is not stained with material.Agitating device 108 can add more wear-resisting material with the corresponding regional area of circular protrusion 102c, to improve the useful life longevity of agitating device 108.The height of circular protrusion 102c is little, such as, less than 1 millimeter, be convenient to agitating device 108 and start food and avoid food to be stained with the end, burnt.Circular protrusion 102c also can be designed to many other shape and patterns.

The rotary speed of agitating device 108 is very important.If speed is low excessively, food can be with agitating device 108 corotation, and therefore, agitating device 108 can't scoop up and stir food well, thereby is difficult to reach the stirring effect of expection.On the other hand, if continuously agitation speed is too high, then food stirred too much, too of a specified duration, thereby the surface of food is damaged, and, also can cause used edible oil waste.In addition, component wear and the energy loss brought of friction also is the problem that will consider.

In order to address the above problem, the present invention proposes a step working method, in this step working method, agitating device 108 periodically stirs food, each stirs period definition is the motion that agitating device 108 stirs a circle or multi-turn continuously, and when each stirs end cycle, the control system of automatic cooker 100 will be cut off the power supply of drive unit 106 automatically, force agitating device 108 to stagnate one period predetermined time interval, then, begin automatically the next stirring cycle.

The advantage of this step working method is, can realize stirring effect preferably, prolongs the service life of agitating device 108 and drive unit 110, and, save the energy.On the other hand, this step working method helps fry to form crisp superficial layer, and therefore, the food of made is more attractive in appearance, good to eat.When being discussed below the control part, this specification will be announced a computer control method and an electronic circuit control method.

Please referring again to Fig. 1.Drive unit 110 comprises a drive motors 126 and main shaft 120.

Motor 126 is installed in the motor room 128.Motor room 128 is fixed on the bottom center of base 116.There are a top opening and a unit room lid 130 in motor room 128.Unit room lid 130 covers in the motor room 128 top, is used for the top opening of disable motor chamber 128.On the unit room lid 130 a central axis hole is arranged, main shaft 120 passes motor room 128 thus.

Motor 126 is installed in the motor room 128 by bearing 132, and is connected with power supply 134 by power line.

One end of main shaft 120 leads to motor 126.If motor 126 is a slowspeed machine, then main shaft 120 directly is connected with the output shaft of motor 126; If motor 126 is a high-speed electric expreess locomotive, then main shaft 120 is connected with the output shaft of motor 126 by some gear mechanisms or other transmission mechanism.Main shaft 120 is coaxial with container inner wall 102b, and penetrates from below in the central opening of container inner wall 102b.

Please referring again to Fig. 2.On the top of main shaft 120, coupling element 122 is coupled with coupling element 106c.Coupling element 122 is the metal cylinders that certain-length is arranged, and is installed in the top of main shaft 120, passes perforation circular hole radially on the main shaft 120.During use, coupling element 122 embeds in the groove of coupling element 106c, thereby is coupled with coupling element 106c.

One or more main shaft support elements 136 are installed in the top of main shaft 120, and its effect is further main shaft 120 to be supported on the container inner wall 102b.Support component 136 penetrates in the central opening of container inner wall 102b slidably with the top of main shaft 120 in the form of a ring.Gap between support component 136 and the container inner wall 102b should be as far as possible little.Bearing is the desirable selection of support component 136, because bearing friction power is little, power loss is few.

Fig. 4 and Fig. 5 describe a forced exhaust system, and this system comprises an exhaust apparatus 200 and an air-blowing device 202.

Exhaust apparatus 200 comprises a discharge duct 206 and a discharge filter 208.One end of discharge duct 206 is fixed on the container cover 104, is connected with a opening on the container cover 104.Discharge duct 206 also plays a carriage, supports discharge filter 208.Filter 208 is installed on the other end of discharge duct 206.Filter 208 can further comprise filtering medium 208a and disposable activated carbon filtration media 208b that a disposable papery or fibrous material are made, and constitutes a multistage combined filter together.

Discharge filter 208 is cup-shaped, is used to handle the soot gas of discharging by in the container 102.Filter 208 is made by one or more layers metal screen material, such as, the aluminum metal filter screen.The sizing grid of metal screen is different and overlapped.When soot gas passed through thus, soot particles wherein will be attached on the filter 208.

Filtering medium

208a and 208b can further remove remaining oil smoke composition, and remove the peculiar smell that is produced when cooking.Gas through filtration mainly is pure steam, and health and home environment are not constituted harm.

Air-blowing device 202 comprises 214, one fans 216 of 210, one motors of an admission line and an one-way cock 218.

One end of admission line 210 is installed in the top of container 102 outer wall 102a, is connected with an opening on container 102 outer wall 102a tops.An opening 212 is arranged on admission line 210, play air inlet.In addition, a breather line 210a passes to space outerpace by opening 212.Fresh air outside enters in the container 102 by pipeline 210a and admission line 210.A filter 210b is made by the metal screen material, is used to prevent that airborne dust is sucked in the container 102.Admission line 210 also plays a carriage, is used to install motor 214.Fan 216 is fixed on the output shaft of motor 214, and, insert in the admission line 210.Motor 214 is connected by electrical wiring to power supply 134.Power supply 134 is presented among Fig. 1.

Fig. 6 describes a cross section of one-way cock 218 among Fig. 5.Valve 218 comprises 222, one coverings 224 of 220, one valve bodies of a valve housing and a spring 226.Valve housing 220 is installed in the stiff end of admission line 210.On the valve housing 220 opening is arranged, allow air to pass through thus.Valve body 222 matches with the open end of valve housing 220.Opening is also arranged on the valve body 222, allow air to pass through thus.Covering 224 is fitted on the valve body 222, is used to close and opens valve 218.A columnar protrusions is arranged on the covering 224, insert slidably in the central opening of valve body 222.The columnar protrusions of covering 224 can be along the certain distance of central opening slip of valve body 222.Spring 226 is installed between the free end and valve housing 220 of columnar protrusions of covering 224.Spring 226 is in certain pretensioned state, and therefore, covering 224 is close to valve body 222, thus valve-off 218.

When air-blowing device 202 was in running order, the gas pressure that fan 216 is produced forced covering 224 valve body 222 that slips away, so valve 218 enters open mode, allows air to pass through thus.Valve 218 is used for preventing that the soot gas that cooking process is produced when air-blowing device 202 is not temporarily worked from being released by air-blowing device 202.

More than, this specification has been announced a kind of design of one-way cock 218.In fact, there are many other suitable valve designs to can be used for this application described in the invention.

Exhaust apparatus 200 and air-blowing device 202 can be installed in many other positions on the automatic cooker 100, and for example, exhaust apparatus 200 can be installed in the top of container 102 outer wall 102a, and air-blowing device 202 can be installed on the container cover 104, or the like.In addition, exhaust apparatus 200 structurally can have many different designs with air-blowing device 202, and the change on these structural designs all should be considered as belonging to category of the present invention.

Exhaust apparatus 200 is mainly used in the oil smoke that is produced when handling culinary art.Air-blowing device 202 is used to force steam to discharge through exhaust apparatus 200.Compare with the product of known technology, the capacity of this centralized forced exhaust system is controllable.

The steam that is produced when removing culinary art particularly in the incipient stage of fried system food process, is necessary.Reduce many good characteristics that moisture contents in the container 102 help to realize fried system food, as bright in colour, tender with a crispy crust, or the like, and, also help to shorten cooking time, save the energy.

Powerful air-blowing helps the discharge of flowing of container 102 inner airs and moisture.But continuous powerful air-blowing will cause too much thermal loss.For solving this difficult problem, the present invention proposes a step exhaust work mode.In this step exhaust work mode, the running of fan 216 is divided into the cycle of many repetitions, when each end cycle, fan 216 is stagnated one period predetermined time interval, as 10 seconds, 20 seconds, or the like, the next work period begun then automatically.When being discussed below the control part, this specification will be announced an electronic circuit control method.

After food exploded and makes, its temperature was still very high, and, still have remaining soot gas in the container 102.Available air-blowing device 202 forces fresh air to enter in the container 102, makes food be quickly cooled to a predetermined temperature, simultaneously, removes the remaining oil smoke in the container 102.This process helps the home environment protection, the good characteristics that system food is exploded in handling safety and maintenance.

More than no matter the forced exhaust system of Gong Buing is used for exploding deeply or frying in shallow oil stir-fry, and many benefits are all arranged.When being used for fry, it can promote the evaporation of foodstuff surface moisture, thereby the food of manufacturing is more attractive in appearance, good to eat.When being used to fry in shallow oil cooked food, particularly Stir Vegetable can make that food is more attractive in appearance.As everyone knows, use conventional frying pan, when covering the pot cover cooking, the green vegetables jaundice that often becomes greatly reduces the aesthetic property of dish.

Please referring again to Fig. 1.A control box 138 is installed on the outer wall 102a of container 102, is used to install control module 150 and power supply 134 etc.

Control module 150 is installed in the control box 138, is used to control the various parameters of automatic cooker 100, such as, oily temperature control, regularly, motor speed control, or the like.

Control module 150 comprises a control circuit 152, as shown in Figure 7.Circuit 152 comprises 156, one relays 158 of 154, one relays of a semiconductor chip and a relay 160.Chip 154 is used for the various functions of programming Control automatic cooker 100; Relay 156 is used to control heater 114; Relay 158 is used to control motor 126; Be used to control motor 214 with relay 160.

Chip 154 has ROM and the RAM that is used to store data and program, and, also have interfaces such as I/O mouth, A/D converter.Comprise a ROM 162 and a ROM 164 among the above-mentioned ROM.ROM 162 is used to store various cooking menus and control program, and ROM 164 is used to remember various reference datas.

Temperature sensor 118 is used for the temperature in the measuring vessel 102, and measured temperature input chip 154 is as controllable variable.When the temperature in the container 102 is higher than the value that the user sets, relay 156 will cut off the power supply of heater 114, thereby satisfy user's requirement better, and save the energy.

Chip 154 is able to programme, with the power supply of control relay 158 batch (-type) ground connection motor 126, when each stirring end cycle of agitating device 108, forces motor 126 to stagnate one period predetermined time interval, begins the next stirring cycle then automatically.Chip 154 can be programmed with similar methods, by relay 160 control motors 214, realizes the service intermittent mode of forced exhaust system.

As shown in Figure 1, power supply 134 is installed in the control box 138, is used to control circuit 152 and various electronic component that electric power is provided, as display, prompting device, LCD screen, or the like, and, also provide electric power for motor 126 and motor 214.

A control panel 166 is attached to control box 138 outsides, is used for supporting and installing switch, display, adjusting knob, prompting device, LCD screen, or the like.

Fig. 8 describes a control circuit 50 realizing agitating device 108 service intermittent modes.

As shown in Figure 8, drive motors 126 drives agitating device 108.The upper end electrode of motor 126 is connected to the negative pole of power supply 134, V-, and lower end electrode is connected to the collector of a PNP triode 51.The emitter stage of triode 51 is connected to the positive pole of power supply 134, V+.A link gear 52 is arranged on the output shaft of motor 126 and two putting between the switch 53.The two on-states of putting switch 53 of rotational angle control of motor 126 output shafts.Switch 53 has an one pole 54 to be connected to the left end of a capacitor 55.One pole 54 can exchange between two states, and these two states are respectively: ＂ work ＂ and ＂ stagnate ＂.On behalf of agitating device 108, ＂ work ＂ state be in agitated conditions; ＂ stagnates the ＂ state and then represents agitating device 108 to stay cool.＂ work ＂ state accounts for motor 126 output shafts and revolves the most angle position that turns around, as more than 80%.＂ work ＂ state links together with V-, and ＂ stagnates the ＂ state and links together with V+.

A main switch 56 is used for starting the service intermittent mode that is provided with halt circuit 50.The upper end of switch 56 is connected to V-, and the lower end is connected to the upper end of a variable resistance 58.

The right-hand member of capacitor 55 links to each other with the lower end of resistor 58.Be connected to the base stage that also has triode 51 of capacitor 55 right-hand members and the lower end of resistor 59 simultaneously.The upper end of resistor 59 is connected to the left end of a switch 60.Switch 60 is used to start the duty of a manual continuous stirring, is called ＂ and stirs the ＂ duty.The right-hand member of switch 60 links together with V-.The upper end of resistor 59 is connected to the lower end of a capacitor 61.The upper end of capacitor 61 is connected with V-.

Switch 60 is press buttones, is used to start ＂ and stirs the ＂ duty.When switch 60 was connected, two terminal linked together, and causes the upper end of resistor 59 to be connected to V-, simultaneously, causes capacitor 61 to be short-circuited to V-.

When switch 56 is in on-state, simultaneously, when switch 60 is in off-state, circuit 50 control motors 126, batch (-type) ground drives agitating device 108, and when each stirred end cycle, agitating device 108 was stagnated one period predetermined intermittence time.This step working method is passed through by triode 51, switch 53, and the circuit that capacitor 55 and resistor 58 are formed is realized.

Now, suppose that switch 56 is in off-state always, thereby motor 126 is in off working state always.Further hypothesis switch 53 is to stagnate the ＂ state at ＂, so capacitor 55 is to be in discharge condition.

When switch 56 was switched on, the electromotive force of resistor 58 upper ends reduced, and causes triode 51 to enter conducting state, thereby connected the power supply of motor 126.When motor 126 begins to rotate, switch 53 is changed the state to ＂ work ＂, causes the left end of capacitor 55 to be connected to V-.At this moment capacitor 55 begins charging, and its right-hand member electromotive force constantly raises with respect to left end.Even after capacitor 55 fully charges, still there is sufficient base current to keep triode 51 to be in conducting state, so motor 126 is rotated further, is circulated back to ＂ up to switch 53 and stagnates the ＂ state.When switch 53 was circulated back to ＂ stagnation ＂ state, the left end of capacitor 55 was connected to V+, and capacitor 55 begins by resistor 58 discharges, when the electromotive force up to resistor 58 lower ends is enough low with respect to V+.During this, triode 51 remains on nonconducting state, causes motor 126 to quit work a period of time.Then, when enough base currents recovered, triode 51 was got back to conducting state again, and a new stirring cycle begins thus.

The length of dead time interval was decided by the 55 needed times of discharge of capacitor.The time interval of suitably selecting the parameter of capacitor 55 and resistor 58 to realize ideal.

Add resistor 59 and capacitor 61, can realize the working method of a manual continuous stirring, this working method and aforesaid service intermittent mode complement each other.In case connect switch 60, no matter what state switch 56 is in, this working method starts immediately.When connecting switch 60, if switch 56 is in on-state, then the working method of stirring continuously will replace step working method.After switch 60 disconnects, the working method of stirring also will keep one predetermined period continuously, and then, step working method is recovered.When switch 60 was pressed, if switch 56 is in off-state, motor 126 got started rotation.After switch 60 disconnected, motor 126 will work on one predetermined period, then, quits work.

When switch 60 is pressed, the last termination V-of resistor 59.Sufficient electric current the flow through base stage and the resistor 59 of triode 51 make triode 51 be in conducting state, and therefore, motor 126 is started working.Suitably select the value of resistor 59, as long as switch 60 is in on-state, this working method just will continue, and irrelevant with the state of switch 53 and switch 56.

Push switch 60 also causes capacitor 61 to be short-circuited to V-, and any electric charge that is present in the capacitor 61 all will discharge by short circuit.When trip switch 60, the electric current of triode 51 base stages of flowing through will continue to be flowed by having put electric capacitor 61, till capacitor 61 charges into enough electric charges.Consequently triode 51 will keep conducting state, thereby motor 126 also will continue operate as normal.Triode 51 keeps the time constant decision of the time span of conducting state by resistor 59 and capacitor 61.This time interval generally is decided to be one, two continuous stirring cycle.

It is worth mentioning that if drive unit 110 has deceleration device, link gear 52 should be arranged between output shaft and the switch 53, rather than between the output shaft of motor 126 and the switch 53.

If wishing each stirring cycle is that multi-turn is stirred, such as two circles, can on the output shaft of drive unit 106, add a less gear, and drive a bigger gear with this, transmission ratio should be 1:2.Link gear 52 should place between switch 53 and the above-mentioned bigger gear.

The service intermittent mode of agitating device 108 can also realize by a mechanical timer, as one by spring driven timing means (not shown).At a round panel upper edge periphery many mutually non-touching electrodes are installed.In addition, install at the center of panel one rotatable and by spring driven needle electrode.When needle electrode rotates, respectively with different peripheral electrode contacts.Represent a stirring cycle corresponding to the angle range of each peripheral electrode.And the angle range between adjacent two peripheral electrodes is represented the intermittence between adjacent two stirring cycles.

Fig. 9 describes a control circuit 70 realizing air-blowing device 202 service intermittent modes.

As shown in Figure 9, motor 214 drive fan 216 force fresh air to enter in the container 102.The upper end electrode of motor 214 is connected to V-, and lower end electrode is connected to the collector of a PNP triode 71.The emitter stage of triode 71 is connected to V+.The base stage of triode 71 is connected to the lower end of a variable resistance 72.The upper end of resistor 72 is connected to the lower end of a capacitor 73.The upper end of capacitor 73 is connected to V-.What be connected to resistor 72 upper ends simultaneously is the lower end of an electromagnetic switch 74 and the left end of a switch 75.Switch 75 is press buttones, is used to start the working method of a manual continuous exhaust pneumatic wallop, is called ＂ exhaust ＂ working method.The right-hand member of the upper end of switch 74 and switch 75 is connected to V-.

Switch 74 is a master switch, is used to start and stop the batch (-type) exhaust work mode that is provided by circuit 70.Switch 74 and motor 126 interlocks.When motor 126 was in running order, switch 74 was connected; When motor 126 shut down, switch 74 disconnected.Because motor 126 is worked according to the batch (-type) mode, it links with switch 74 again, so air-blowing device 202 also will be worked according to the batch (-type) mode.

No matter switch 74 is connected still switch 75 connections, and the upper end of resistor 72 all is connected to V-, and simultaneously, capacitor 73 is short-circuited to V-.

Batch (-type) exhaust work mode is passed through by triode 71, resistor 72, and the circuit that capacitor 73 and switch 74 are formed is realized.Motor 126 and switch 74 interlocks, the duty of gauge tap 74.

In running order when motor 126, switch 74 is switched on, and the upper end of resistor 72 is connected to V-, and simultaneously, capacitor 73 is shorted to V-.The electromotive force of resistor 72 upper ends reduces, and causes triode 71 to enter conducting state, thereby, starter motor 214.When motor 126 was in off working state, switch 74 was disconnected.But the base current of triode 71 continues to flow by having put electric capacitor 73, till capacitor 73 charges into enough electric charges.Therefore, triode 71 will continue to keep conducting state, and motor 214 also will keep duty.Triode 71 will keep one period predetermined time interval of conducting state, and the length in this time interval is determined according to the time constant of resistor 72 and capacitor 73.Then, motor 214 is stagnated a predetermined time interval, and up to the next one stirring cycle of agitating device 108, at this moment motor 126 is connected power supply, and simultaneously, switch 74 is switched on once more.

Add switch 75, can realize the working method of a manual continuous exhaust pneumatic wallop, this working method and aforesaid batch (-type) exhaust work mode complement each other.When switch 75 was switched on, no matter switch 74 was in any state, and motor 214 all will start at once.When pressing switch 75, if switch 74 is to be in on-state, then the working method of continuous exhaust pneumatic wallop will replace step exhaust work mode.After switch 75 is released, the working method of this continuous exhaust pneumatic wallop will keep one period predetermined time interval, then, recover step exhaust work mode.When pressing switch 75, if switch 74 is to be in off-state, motor 214 also will start at once.After switch 75 is disconnected, motor 214 will continue to keep one period predetermined time interval of this duty, then, quit work.

Figure 10 describes a perspective view that is used for the gabion 168 of fried deeply food.Gabion 168 has the tubular inner wall 168a, one or more slotted eye 168b and the basket handle 168c that stand on the bottom.

A cross section when Figure 11 describes gabion 168 and is in the operating position.Inwall 168a is installed in gabion 168 bottom center, is enclosed within on the inwall 102b of container 102.Slotted eye 168b and anti-corotation device 112 are suitable, and gabion 168 is positioned the operating position.Handle 168c is installed in the top of gabion 168.There is very little depression the upper edge of container 102, allows to connect the metal connecting piece of handle 168c and gabion 168 upper edges by extending to the outside in the container 102.

The using method of automatic cooker 100 is as follows.

At first, container 102 is fixed on operating position in the bearing 116, and, install agitating device 108.

Secondly, a certain amount of edible oil is added in the container 102, then, be preheated to certain temperature.

The 3rd, the food that will process is put into container 102, and covered container lid 104.

The 4th, select suitable temperature, time, agitation strength and exhaust dynamics etc., perhaps, select an automated operator, then, start automatic cooker 100.Automatic cooker 100 beginning automation mechanized operations are up to finishing the program that sets.

The 5th, take out agitating device 108, then, take out finished food.

Whole process need not manpower and gets involved.When process finished, automatic cooker 100 can pipe, the prompting user.

Figure 12 describes another design of automatic cooker 100, automatic cooker 100a.In this design, heater 114 is installed on the heater support 170.Support 170 is removably mounted on the container base 116.Temperature sensor 118 is installed in unit room lid 130 or other suitable position.Container 102 is removably mounted on container base 116 the insides.Like this, container 102 can separate with base 116, is convenient to take out from the inside finished food, and, also be easy to take off independent cleaning.During operating position in container 102 is placed in bearing 116, heater 114 and sensor 118 touch with the bottom connection of container 102.

Figure 13 describes another case study on implementation of the present invention, a cross section of automatic cooker 300.Some parts of automatic cooker 300 or device and

automatic cooker

100 and 100a's is similar on function and structure.For fear of repeat specification, parts that identical numeral is similar or device.The similar parts or the detailed description of device please refer to automatic cooker 100 and the 100a shown in Fig. 1 and 12.

The bottom center of container 302 has an axis hole, and a main shaft 304 that is extended out by drive unit 110 axis hole thus penetrates in the container 302.

Coupling device 306 be used to be coupled main shaft 304 and agitating device 108, its underpart is a cylindrical sleeve.The lower end of cylindrical sleeve and agitating device 108 are fixed together, and the coupling element 306a of a flute profile is arranged at top, or other type coupling element, with main shaft 304 couplings.Main shaft 304 inserts in the cylindrical sleeve of coupling device 306 lower ends together with coupling element 122, and is coupled with coupling element 306a.The upper end of coupling device 306 extends upwardly to certain height.

As shown in figure 14, there is an internal gear 304a lower end of main shaft 304, is meshed with the square or gearhead of motor shaft 126a upper end.This cooperation has greatly reduced the requirement to main shaft 304 and motor shaft 126a axiality, and benefit aborning is open-and-shut.

Figure 14 describes a cross section of sealing device 308 among Figure 13.Sealing device 308 is used for the gap between seal shaft 304 and the container 302.Sealing device 308 comprises 310, one sealing nuts 312 of a sealing flange and encapsulant 314.

Flange 310 is coaxial with axle 304, and its stiff end is installed on the outer surface of container 302 bottom center.Nut 312 combines by thread seal with the free end of flange 310.Encapsulant 314 places the space that forms between flange 310 and the nut 312.During last jack panel 312, produce extruding, force encapsulant 314 to be close to the eck and the axle 304 of flange 310, thereby realize sealing effectiveness.When leaking generation, further go up jack panel 312.

Above-mentioned sealing device 308 is that a kind of typical case who is used for the low speed rotating shaft sealing uses.

The selection of encapsulant 314 is very important.Encapsulant 314 needs high temperature resistant, selects the simple metal material usually.When encapsulant 314 was fine copper or aluminium, axle 304 must be done cure process.Copper and aluminium matter encapsulant can be used for the hot environment of 538 ℃ (1000 ℉).

Sealing device 308 also can be taked many other forms, such as, telescopic and labyrinth type, or the assembly of various ways are with the sealing effectiveness of realizing ideal.

Figure 15 describes the another kind design of sealing device 308 among Figure 13.In this design, sealing device 308 is installed in the bottom center of container 302 the insides, rather than is installed in the outside of container 302.The stiff end of flange 310 is installed on the inner surface of container 302 bottoms, and its free end extends upwardly to a predetermined height.Nut 312 and encapsulant 314 are installed in the free end of flange 310.

The important benefit of design shown in Figure 15 is, for most practical application, sealing device 308 all exceeds the pasta or the water surface, and the interface that is sealed is not immersed in below the liquid, so, the requirement of sealing device 308 is significantly reduced.In addition, axle 304 is supported preferably a higher position.

In actual use, the lower tubular jacket casing of coupling device 306 is in the outside of sealing device 308.

Other characteristics of automatic cooker 300 are similar to

automatic cooker

100 and 100a's.

Figure 16 describes another case study on implementation of the present invention, a cross section of automatic cooker 400.Some parts of automatic cooker 400 or device and

automatic cooker

100 and 100a's is similar on function and structure.For fear of repeat specification, parts that identical numeral is similar or device.The similar parts or the detailed description of device please refer to automatic cooker 100 and the 100a in Fig. 1 and 12.

Container 402, above opening, below closed, a central shaft 404 is arranged, be installed in the bottom center in the container 402, be used to guide and support coupling device 406.The other end of central shaft 404 extends upwardly to a predetermined height.

Coupling device 406 is sleeve pipes, is enclosed within on the axis of centres 404, is used for the rotative power of drive unit 408 is passed to agitating device 108.The lower end of coupling device 406 and agitating device 108 are connected, and the upper end extends upward.A coupling element 406a is arranged at the top of coupling device 406.

A motor room 410, be configured in container 402 above, be installed in the top of control box 138 by hinge fitting 412.The operating position of motor room 410 is level, during use, can mention and puts down by handle 414.

Drive motors 416 is installed in 410 the insides, motor room.Belt pulley 418 is fixed on the motor shaft, and rotative power is delivered on the main shaft 420 from motor 416 by belt 422 and drive pulley 424.Main shaft 420 is installed in the motor room 410 by bearing element 426.The lower ends downward of axle 420 is extended, and passes the bottom surface of motor room 410.Coupling element 428 is fixed on the lower end of axle 420, is used to drive a middle coupling device 430 that is installed on the container cover 104.

Middle coupling device 430 comprises 432, one top coupling elements 434 of a jackshaft and a bottom coupling element 436.

Coupling element 434 is fixed on the upper end of axle 432, is coupled with coupling element 428.The lower ends downward of jackshaft 432 is extended, and passes a central axis hole on the container cover 104.Coupling element 436 is installed in the lower end of

axle

432, and 406a is coupled with coupling element.

Middle coupling device 430 is installed on the container cover 104 by bearing element 438.

The further feature of automatic cooker 400 is similar to

automatic cooker

100 and 100a's.

For all above-mentioned case study on implementation, when container was bigger, agitating device was also just bigger, uses inconvenience.In order to address this problem, the bottom of container can suitably inwardly dwindle gradually, and like this, the diameter of container bottom is smaller, and agitating device also just can design smallerly.

The reader can see, automatic cooker of the present invention can be used for dark fried and fry in shallow oil multiple use such as stir-fry.The operating process full automation greatly reduces the time and efforts that people are spent in daily culinary art.When using automatic cooker of the present invention, container cover is covered at container top always, therefore, and the personnel's burn that can avoid deep fat to splash and may bring thus.Simultaneously, the gas that has oil smoke that is produced during the cooking filters by forced exhaust system level, removes oil smoke, go behind the peculiar smell outside the amount discharge container, therefore, the long-term hazards that can avoid oil smoke that home environment and health are brought effectively.Automatic cooker of the present invention, owing to have automatic stirring function, when exploding food deeply, the amount of the edible oil that needs reduces greatly, the direct benefit of bringing thus is efficient, energy-conservation, and the amount of the edible oil of food absorption is less.

Agitating device batch (-type) ground stirs food, in this step working method, agitating device periodically stirs food, and when each stirs end cycle, control system is cut off the power supply of drive unit automatically, forces agitating device to stagnate one period predetermined time interval.The advantage of this step working method is, can realize stirring effect preferably, prolongs the service life of parts, and, save the energy.On the other hand, this step working method helps fry to form crisp superficial layer, and therefore, the food of made is more attractive in appearance, good to eat.

The present invention describes with the form of describing, and therefore, used term is an any limitation of the invention in order to describe better and to illustrate, should not be construed as just.

This specification has been done to describe in detail and explanation to case study on implementation more of the present invention.Though these case study on implementation have particularity to a certain degree on form and structure,, these particularity only are to be any limitation of the invention in order to describe and to illustrate the present invention, should not be construed as.

In addition, though the present invention describe with the form of family expenses automatic cooker,, the present invention obviously has commercial use, such as, be used for restaurant etc., so the present invention can also commercial describe with the form of automatic cooking apparatus.

Though forced exhaust of the present invention system is described with the form that fresh air is blown in the automatic cooker, but, suitably change the order or the combination of some parts, described forced exhaust system can be changed into the form of bleeding outward, this pro forma change does not obviously depart from the spirit of forced exhaust of the present invention, therefore, this pro forma change should be considered as belonging to category of the present invention.

Therefore, in actual applications, the parts in the above-mentioned case study on implementation can change on shape, material, structure, combination, sequential scheduling concrete form details, and these only change otherwise depart from spirit of the present invention, then all should be considered as belonging to category of the present invention.

Claims

1. automatic cooker, described automatic cooker comprises:

A container has a top opening, is used to contain food;

A heater is used to heat the food in the described container;

2. according to the defined automatic cooker of claim 1, it is characterized in that: described automatic cooker further comprises an exhaust apparatus, the gas that is produced when being used to drain culinary art.

3. according to the defined automatic cooker of claim 2, it is characterized in that: described exhaust apparatus comprises a filter, the soot gas that is produced when being used to handle culinary art.

4. according to the defined automatic cooker of claim 1, it is characterized in that: described air-blowing device comprises an one-way cock, is used to prevent that soot gas from releasing thus.

5. according to the defined automatic cooker of claim 1, it is characterized in that: described container has a container inner wall that stands on container bottom central authorities; Described coupling device has an outer tubular wall and a tubular inner wall, the two is connected mutually on top, the outer tubular wall of described coupling device is enclosed within on the described container inner wall, its bottom is connected with described agitating device, a coupling element is arranged at the bottom of the tubular inner wall of described coupling device, is coupled with the driving shaft of described drive unit.

6. according to the defined automatic cooker of claim 1, it is characterized in that: described container has a bottom center opening; Described drive unit has a driving shaft, passes the bottom center opening of described container; Described automatic cooker further comprises a sealing device, is used to seal the bottom center opening of described container and the space between the described driving shaft.

7. according to the defined automatic cooker of claim 1, it is characterized in that: described container has an axis of centres that stands on container bottom; Described drive unit be installed in described container above; The following part of described coupling device is a tubular sleeve, is enclosed within on the axis of centres of described container bottom, and the lower end of tubular sleeve is connected with described agitating device, and there is a coupling element upper end of described coupling device, is coupled with described drive unit.

8. according to any defined automatic cooker of claim 1～7, it is characterized in that: described container comprises an anti-corotation device, is installed in the described container, is used to prevent that food from rotating with described agitating device.

9. according to any defined automatic cooker of claim 1～7, it is characterized in that: described automatic cooker further comprises a gabion, is used for fried deeply food, and described gabion has a top opening and a bottom center opening.

10. according to any defined automatic cooker of claim 1～7, it is characterized in that: described automatic cooker further comprises a control device, when each stirs end cycle, cut off the power supply of described drive unit automatically, force described agitating device to stagnate one period predetermined time interval.